KEYENCE IV Series - Manual (Page 295)

A-39 - IV Series User's Manual (Monitor) -
A
Remedy when the Monitor cannot be Connected with the Sensor
Status Remedy
Data which is larger than the remaining
storage of the FTP buffer has been created
and the transfer failed.
y Change the trigger cycle of the sensor.
“Setting the Trigger Options” (Page 4-10)
y Confirm the stress status of the network.